Suki Pozidriv Chipboard Screws have a small head and a countersunk Pozidriv recess, they are designed specifically to use for attaching hinges, particle boards, MDF and timber These are self-tapping screws, thus do not require any holes to be bored first Made of steel, these screws have a zinc passivation coating which gives it a distinctive yellow patina, and increases the screw’s corrosion resistance properties